Marten J. van Sinderen

Semantic Interoperability for the IoT: Analysis of JSON for Linked Data

Recently a number of IoT platforms have been developed to cope with the big data generated and consumed by sensors and actuators. Some IoT platforms achieve syntactic interoperability by adopting JavaScript Object Notation (JSON) to represent the message payload produced by devices.

Semantic Interoperability of Early Warning Systems: a Systematic Literature Review

An Early Warning System (EWS) is a system-of-systems that is able to detect emergency risks and warn different stakeholders. Semantic interoperability is crucial in these systems because it enables unambiguous data exchange, so that different data sources can be integrated with EWS. This chapter presents the results of our systematic literature review on EWS interoperability. The research questions targeted existing interoperable EWS and their architecture and components functions, emphasizing the role of data representation mechanisms, for example, data/message models, protocols and ontologies. Since semantic models rely on syntactical models, this review also includes these data representation approches. This chapter also analyzes the main issues concerning the improvement of EWS interoperability, stressing the role of the internet of Things in smart situation-aware emergency services. We conclude by proposing topics for follow-up research.